checkbutton: Sync the indicator state with the widget

Clicking the whole check button toggles it, so make sure the hover and
active states are propagated to the indicator like in GTK3.

diff --git a/gtk/gtkcheckbutton.c b/gtk/gtkcheckbutton.c
index e9a30a1ce3e67de953133431cefffca29d5e9dbf..87df3e58447d7cd0ed626eefb82cd29457b49298 100644 (file)
--- a/gtk/gtkcheckbutton.c
+++ b/gtk/gtkcheckbutton.c
@@ -399,6 +399,19 @@ get_group_active_button (GtkCheckButton *self)
   return NULL;
 }
 
+static void
+gtk_check_button_state_flags_changed (GtkWidget     *widget,
+                                      GtkStateFlags  previous_flags)
+{
+  GtkCheckButton *self = GTK_CHECK_BUTTON (widget);
+  GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (self);
+  GtkStateFlags state = gtk_widget_get_state_flags (GTK_WIDGET (self));
+
+  gtk_widget_set_state_flags (priv->indicator_widget, state, TRUE);
+
+  GTK_WIDGET_CLASS (gtk_check_button_parent_class)->state_flags_changed (widget, previous_flags);
+}
+
 static gboolean
 gtk_check_button_focus (GtkWidget         *widget,
                         GtkDirectionType   direction)
@@ -499,6 +512,7 @@ gtk_check_button_class_init (GtkCheckButtonClass *class)
   object_class->set_property = gtk_check_button_set_property;
   object_class->get_property = gtk_check_button_get_property;
 
+  widget_class->state_flags_changed = gtk_check_button_state_flags_changed;
   widget_class->focus = gtk_check_button_focus;
 
   class->activate = gtk_check_button_real_activate;